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Finding the Fourth Proportional to 363,255.52, 501,284.80 and 210,300.20

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Solution

The fourth proportional to 363,255.52, 501,284.80 and 210,300.20 is: 290,209.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,255.52 : 501,284.80 = 210,300.20 : x
  2. Step 2: Convert to fraction form
    363,255.52/501,284.80 = 210,300.20/x
  3. Step 3: Cross multiply
    363,255.52x = 501,284.80 × 210,300.20
  4. Step 4: Simplify right side
    363,255.52x = 105,420,293,696.96
  5. Step 5: Solve for x
    x = 105,420,293,696.96/363,255.52
  6. Step 6: Final answer
    x = 290,209.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.